We’ve been fortunate to host Facebook CEO and co-founder Mark Zuckerberg twice on the stage of the D: All Things Digital conference, including one appearance with COO Sheryl Sandberg.

With the blockbuster IPO filing of the social networking giant yesterday — and the ensuing quiet period — both interviews are now most definitely an interesting look-see at the pair who are leading the company.

After Facebook goes public in late May, investors will presumably get more interaction with them both, as well as deeper insight into what makes the company tick.

Until then, here are the videos from the full interviews from 2010’s D8 and 2008’s D6 (unfortunately, for goofy reasons back then, we had to cut these up into four parts).

The interviews cover a wide range of topics, including the then-distant IPO.

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